/*
 * gybon - Core modules for Google Yahoo Rich Application Framework
 *
 * Copyright (c) 2009, Yves Cuillerdier
 * All rights reserved.
 * 
 * This software is licensed under the new BSD License:
 * 
 * Redistribution and use in source and binary forms, with or without 
 * modification, are permitted provided that the following conditions are met:
 *
 * Redistributions of source code must retain the above copyright notice, 
 * this list of conditions and the following disclaimer.
 * Redistributions in binary form must reproduce the above copyright notice, 
 * this list of conditions and the following disclaimer in the documentation 
 * and/or other materials provided with the distribution.
 * 
 * Neither the name of the author nor the names of its contributors may 
 * be used to endorse or promote products derived from this software without 
 * specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
 * POSSIBILITY OF SUCH DAMAGE.
 * 
 * @version 0.2.0
 */
package gyraf.wrapper.client.misc;

import com.google.gwt.core.client.JavaScriptObject;

/**
 * JavaScritp utilities
 */
public final class JsUtil {

	/**
	 * Return the string representation of any object
	 * 
	 * @param jso
	 *            the object
	 * @return the string representation of the object
	 */
	public static native String toString(JavaScriptObject jso) /*-{
		return $wnd.YAHOO.lang.JSON.stringify(jso); 
	}-*/;

	/**
	 * Return a 'surface' clone of the object.
	 * @param obj the object to clone
	 * @return a 'surface' clone of the object
	 */
	public static native JavaScriptObject clone(JavaScriptObject obj) /*-{
    	if(obj == null || typeof(obj) != 'object') {
        	return obj;
        }
    	var clone = new obj.constructor();
    	for(var key in obj) {
        	clone[key] = obj[key];
        }
    	return clone;
	}-*/;
	
	/**
	 * Return a 'deap' clone of the object.
	 * @param obj the object to clone
	 * @return a 'deap' clone of the object
	 */
	public static native JavaScriptObject cloneDeap(JavaScriptObject obj) /*-{
    	if(obj == null || typeof(obj) != 'object') {
        	return obj;
        }
    	var clone = new obj.constructor();
    	for(var key in obj) {
        	clone[key] = @gyraf.wrapper.client.misc.JsUtil::cloneDeap(Lcom/google/gwt/core/client/JavaScriptObject;)(obj[key]);
        }
    	return clone;
	}-*/;
	
	/** This class is static */
	private JsUtil() {
		// Static class
	}
}
